While ANOVA is conservative ( in maintaining a significance level ) against multiple comparisons in one dimension, it is not conservative against comparisons in multiple dimensions.
32.
The experimenter can choose the significance level and the shape of the region, and then the size of the region is determined by the probability distribution.
33.
The type I error rate or "'significance level "'is the probability of rejecting the null hypothesis given that it is true.
34.
The concept of significance level is not associated with models but with hypothesis testing .-- Lambiam 20 : 18, 5 April 2008 ( UTC)
35.
Conventional significance levels for testing hypotheses ( acceptable probabilities of wrongly rejecting a true null hypothesis ) are . 10, . 05, and . 01.
36.
If the calculated trend, a, is larger than the value, V, then the trend is deemed significantly different from zero at significance level S.
37.
Often such models reduce complex questions to overly simple " hypothesis tests " using arbitrary " significance levels " to " accept or reject " a single parameter value.
38.
Critics of this claim note that the report actually proved that the " unknowns " were distinctly different from the " knowns " at a very high statistical significance level.
39.
Statistically sound association discovery controls this risk, in most cases reducing the risk of finding " any " spurious associations to a user-specified significance levels.
40.
In comments on MM05 made in October, Peter Huybers showed that McIntyre and McKitrick had omitted a critical step in calculating significance levels, and MBH98 had shown it correctly.
